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/*
* Copyright 2016, Blender Foundation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor(s): Blender Institute
*
*/
/** \file blender/draw/modes/pose_mode.c
* \ingroup draw
*/
#include "DRW_engine.h"
#include "DRW_render.h"
/* If builtin shaders are needed */
#include "GPU_shader.h"
#include "draw_common.h"
#include "draw_mode_engines.h"
extern GlobalsUboStorage ts;
/* *********** LISTS *********** */
/* All lists are per viewport specific datas.
* They are all free when viewport changes engines
* or is free itself. Use POSE_engine_init() to
* initialize most of them and POSE_cache_init()
* for POSE_PassList */
typedef struct POSE_PassList {
struct DRWPass *bone_solid;
struct DRWPass *bone_wire;
struct DRWPass *bone_envelope;
struct DRWPass *relationship;
} POSE_PassList;
typedef struct POSE_StorageList {
struct POSE_PrivateData *g_data;
} POSE_StorageList;
typedef struct POSE_Data {
void *engine_type;
DRWViewportEmptyList *fbl;
DRWViewportEmptyList *txl;
POSE_PassList *psl;
POSE_StorageList *stl;
} POSE_Data;
/* *********** STATIC *********** */
typedef struct POSE_PrivateData {
DRWShadingGroup *relationship_lines;
} POSE_PrivateData; /* Transient data */
/* *********** FUNCTIONS *********** */
/* Here init all passes and shading groups
* Assume that all Passes are NULL */
static void POSE_cache_init(void *vedata)
{
POSE_PassList *psl = ((POSE_Data *)vedata)->psl;
POSE_StorageList *stl = ((POSE_Data *)vedata)->stl;
if (!stl->g_data) {
/* Alloc transient pointers */
stl->g_data = MEM_mallocN(sizeof(*stl->g_data), __func__);
}
{
/* Solid bones */
DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS;
psl->bone_solid = DRW_pass_create("Bone Solid Pass", state);
}
{
/* Wire bones */
DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS | DRW_STATE_BLEND;
psl->bone_wire = DRW_pass_create("Bone Wire Pass", state);
}
{
/* distance outline around envelope bones */
DRWState state = DRW_STATE_ADDITIVE | DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_LESS | DRW_STATE_BLEND;
psl->bone_envelope = DRW_pass_create("Bone Envelope Outline Pass", state);
}
{
/* Non Meshes Pass (Camera, empties, lamps ...) */
DRWState state =
DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS |
DRW_STATE_BLEND | DRW_STATE_WIRE;
psl->relationship = DRW_pass_create("Bone Relationship Pass", state);
/* Relationship Lines */
stl->g_data->relationship_lines = shgroup_dynlines_uniform_color(psl->relationship, ts.colorWire);
DRW_shgroup_state_enable(stl->g_data->relationship_lines, DRW_STATE_STIPPLE_3);
}
}
/* Add geometry to shadingGroups. Execute for each objects */
static void POSE_cache_populate(void *vedata, Object *ob)
{
POSE_PassList *psl = ((POSE_Data *)vedata)->psl;
POSE_StorageList *stl = ((POSE_Data *)vedata)->stl;
const DRWContextState *draw_ctx = DRW_context_state_get();
/* In the future this will allow us to implement face manipulators,
* and similar functionalities. For now we handle only pose bones. */
if (ob->type == OB_ARMATURE) {
if (DRW_pose_mode_armature(ob, draw_ctx->obact)) {
DRW_shgroup_armature_pose(
ob, psl->bone_solid, psl->bone_wire, psl->bone_envelope,
stl->g_data->relationship_lines);
}
}
}
/**
* Return true if armature should be handled by the pose mode engine.
*/
bool DRW_pose_mode_armature(Object *ob, Object *active_ob)
{
/* Pode armature is handled by pose mode engine. */
if ((ob == active_ob) && ((ob->mode & OB_MODE_POSE) != 0)) {
return true;
}
/* Armature parent is also handled by pose mode engine. */
if ((active_ob != NULL) && ((active_ob->mode & OB_MODE_WEIGHT_PAINT) != 0)) {
if (active_ob->parent == ob) {
return true;
}
}
return false;
}
/* Draw time ! Control rendering pipeline from here */
static void POSE_draw_scene(void *vedata)
{
POSE_PassList *psl = ((POSE_Data *)vedata)->psl;
DRW_draw_pass(psl->bone_envelope);
DRW_draw_pass(psl->bone_wire);
DRW_draw_pass(psl->bone_solid);
DRW_draw_pass(psl->relationship);
}
/* Create collection settings here.
*
* Be sure to add this function there :
* source/blender/draw/DRW_engine.h
* source/blender/blenkernel/intern/layer.c
* source/blenderplayer/bad_level_call_stubs/stubs.c
*
* And relevant collection settings to :
* source/blender/makesrna/intern/rna_scene.c
* source/blender/blenkernel/intern/layer.c
*/
#if 0
void POSE_collection_settings_create(CollectionEngineSettings *ces)
{
BLI_assert(ces);
// BKE_collection_engine_property_add_int(ces, "foo", 37);
}
#endif
static const DrawEngineDataSize POSE_data_size = DRW_VIEWPORT_DATA_SIZE(POSE_Data);
DrawEngineType draw_engine_pose_type = {
NULL, NULL,
N_("PoseMode"),
&POSE_data_size,
NULL,
NULL,
&POSE_cache_init,
&POSE_cache_populate,
NULL,
NULL,
&POSE_draw_scene,
NULL,
};
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